Case for remote control key

Abstract

A portable remote control key case including a first case shell and a second case shell that are securely fastened to each other. The case includes a case body, which has a component chamber and a key socket, and a mechanical key, which is partially received in the key socket. First and second engagement projections are formed extending across a boundary between the first and second case shells. The mechanical key includes clamp portions for clamping the first and second engagement projections.

1. A case for a portable device, in which the portable device includes a communication apparatus for communicating with a drive controller that electronically locks and unlocks a lock device to remotely control the lock device, the case comprising:
 a case body including a component compartment, for accommodating the communication apparatus, and a socket, having an opening, the case body being formed by fastening a first case shell and a second case shell, which have a snap-fit structure, to each other, the first case shell having an outer projection formed on an outer surface of the first case shell and the second case shell having an outer projection formed on an outer surface of the second case shell, wherein when the first and second case shells are fastened to each other, the outer projections of the first and second case shells are integrated and form an engagement projection near the opening of the socket and extending across a boundary between the first and second case shells; 
 an attachment detachably attached to the case body, the attachment being partially received in the socket; and 
 a clamp portion arranged on the attachment for clamping the engagement projection that is formed by integrating the outer projections of the first and second case shells, the clamp portion including a groove with which the engagement projection is engaged when the attachment is received in the socket. 
 
     
     
       2. The case according to  claim 1 , wherein:
 the first case shell includes a first side surface, in which the opening of the socket is formed, and a first perpendicular surface, extending continuously from and perpendicular to the first side surface; 
 the second case shell includes a second side surface, in which the opening of the socket is formed, and a second perpendicular surface, extending continuously from and perpendicular to the second side surface; 
 the engagement projection includes a plurality of first projections, formed on the first side surface and first perpendicular surface of the first case shell, and a plurality of second projections, formed on the second side surface and second perpendicular surface of the second case shell; and 
 the clamp portion clamps the first and second projections. 
 
     
     
       3. The case according to  claim 2 , wherein:
 the clamp portion includes a first holding groove, for clamping the first projections, and a second holding groove, for clamping the second projections; and 
 either one of the first projections and the second projections are guided along and held by the associated holding groove; and 
 the other one of the first projections and the second projections are engaged with and held by the associated holding groove. 
 
     
     
       4. The case according to  claim 1 , further comprising:
 an engagement structure arranged on the engagement projection and the clamp portion for keeping the engagement projection in a state held by the clamp portion. 
 
     
     
       5. The case according to  claim 1 , further comprising:
 a hinge formed at a position separated from the engagement projection for pivotally connecting the first and second case shells. 
 
     
     
       6. The case according to  claim 1 , wherein the engagement projection and the clamp portion include a dovetail for connecting the engagement projection and the clamp portion to each other. 
     
     
       7. The case according to  claim 1 , further comprising:
 an elastic seal element arranged between the first case shell and the second case shell. 
 
     
     
       8. A case for a portable remote control key, in which the portable remote control key includes a communication apparatus for communicating with a drive controller that electrically locks and unlocks a lock device to remotely control the lock device, the case comprising:
 a first case shell having a joining surface and a side surface; 
 a second case shell having a joining surface and a side surface and defining a component compartment, for accommodating the communication apparatus, and a socket, having an opening, in cooperation with the first case shell, wherein the joining surface of the second case shell comes into contact with the joining surface of the first case shell when the second case shell is fastened to the first case shell, and the side surface of the second case shell is flush with the side surface of the first case shell when the second case shell is fastened to the first case shell; 
 a first projection formed on the side surface of the first case shell; 
 a second projection formed on the side surface of the second case shell, the second projection cooperating with the first projection to form an engagement projection extending across a boundary between the first and second case shells; and 
 a plug received in the socket to close the socket, the plug including a clamp portion for clamping the engagement projection that is formed by integrating the first and second projections of the first and second case shells to fasten the first and second case shells each other, the clamp portion including a groove with which the engagement projection is engaged when the plug is received in the socket. 
 
     
     
       9. The case according to  claim 8 , wherein the plug is an attachment including the clamp portion and a hole for attaching an accessory.